AirHint found the following cheapest return flights from Xi'an (XIY) to London (LGW) in December 2025 (see full year).

Return flights

17 Dec - 22 Dec	China Eastern
21 Dec - 28 Dec	China Eastern
11 Dec - 28 Dec	China Eastern
05 Dec - 12 Dec	Hainan Airlines
19 Dec - 27 Dec	China Eastern
20 Dec - 27 Dec	Air China
14 Dec - 19 Dec	Shanghai Airlines
15 Dec - 18 Dec	Thai AirAsia
07 Dec - 09 Jan	Singapore Airlines

Also check the deals for one-way flights from Xi'an to London in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Xi'an to London in December from $590

Return flights